The URL can be used to link to this page

Home My WebLink AboutBLD2022-00221_03Simple Heating System Size: Washington State Project Information Contact Information Heating System Type: To see detailed instructions for each section, place your cursor on the word "Instructions" Design Temperature Instructions Design Temperature Difference (∆T)45 ∆T = Indoor (70 degrees) - Outdoor Design Temp Area of Building Conditioned Floor Area Instructions Conditioned Floor Area (sq ft)818 Average Ceiling Height Conditioned Volume Instructions Average Ceiling Height (ft)8.0 6,544 Glazing and Doors U-Factor X Area = UA Instructions 0.300 180 53.91 Skylights U-Factor X Area = UA Instructions 0.50 --- Insulation Attic U-Factor X Area = UA Instructions 0.026 818 21.27 Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA Instructions ---0 ________ Above Grade Walls (see Figure 1)U-Factor X Area UA Instructions 0.056 929 52.02 Floors U-Factor X Area UA Instructions 0.029 818 23.72 Below Grade Walls (see Figure 1)U-Factor X Area UA Instructions 0.028 0 ________ Slab Below Grade (see Figure 1)F-Factor X Length UA Instructions 0.303 0 --- Slab on Grade (see Figure 1)F-Factor X Length UA Instructions ---0 ________ Location of Ducts Instructions Duct Leakage Coefficient 1.00 Sum of UA 150.92 Envelope Heat Load 6,792 Btu / Hour Sum of UA x ∆T Air Leakage Heat Load 3,180 Btu / Hour Volume x 0.6 x ∆T x 0.018 Building Design Heat Load 9,972 Btu / Hour Air leakage + envelope heat loss Building and Duct Heat Load 9,972 Btu / Hour Ducts in unconditioned space: sum of building heat loss x 1.10 Ducts in conditioned space: sum of building heat loss x 1 Maximum Heat Equipment Output 12,465 Btu / Hour Building and duct heat loss x 1.40 for forced air furnace Building and duct heat loss x 1.25 for heat pump This heating system sizing calculator is based on the Prescriptive Requirements of the 2018 Washington State Energy Code (WSEC) and ACCA Manuals J and S. This tool will calculate heating loads only. ACCA procedures for sizing cooling systems should be used to determine cooling loads. Please complete the green drop-downs and boxes that are applicable to your project. As you make selections in the drop-downs for each section, some values will be calculated for you. If you do not see the selection you need in the drop-down options, please contact the WSU Energy Program at energycode@energy.wsu.edu or (360) 956-2042 for assistance. Kasperzak Addition 266 Moondance Lane Port Ludlow, WA 98365 Dean Burgess, AIA dburgess@proofarch.com (406) 570-3235 Above Grade Below Grade Figure 1. All Other Systems Heat Pump (07/01/13) RECEIVED BY DCD 4/28/2022 RECEIVED BY DCD 4/26/2022 RECEIVED BY DCD 4/26/2022 RECEIVED BY DCD 4/26/2022